From: mike.rapoport@gmail.com (Mike Rapoport)
To: linux-arm-kernel@lists.infradead.org
Subject: pxa300 - DDRAM base value
Date: Sun, 6 Jun 2010 20:03:32 +0300 [thread overview]
Message-ID: <AANLkTikMTZ8bl_B0kvowJmtKyRrPbF7Qds3YMeVCWw7E@mail.gmail.com> (raw)
In-Reply-To: <AANLkTil5TWYILcdp872as8S8LMqQWhPYWLt7cxs2lUm5@mail.gmail.com>
On Sun, Jun 6, 2010 at 11:17 AM, Eric Miao <eric.y.miao@gmail.com> wrote:
> On Sun, Jun 6, 2010 at 1:19 AM, Marek Vasut <marek.vasut@gmail.com> wrote:
>> Dne ?t 1. ?ervna 2010 07:44:18 balakrishnan napsal(a):
>>> I am working on pxa300 based development board and using Linux 2.6.34.
>>> This Linux kernel already has support for following boards
>>> 1. zylonite_pxa300
>>> 2. cm-x300
>>> 3. colibri-pxa300
>>> 4. littleton
>>>
>>> My doubt is that pxa300 based boards are using "0xa0000000" ?as DDRAM
>>> base and PHYS_OFFSET is also defined in
>>> "arch/arm/mach-pxa/include/mach/memory.h" as 0xa0000000.
>>> But in our board ?DDR is mapped in 0x80000000. Does it make any
>>> problem?. Because after mmu is turned ON, my board is hanging.
>>>
>>> "zreladdr-y ? := 0x80008000" is defined in
>>> "arch/arm/mach-pxa/Makefile.boot" file .
>>> my machine_desc is as follows
>>> .phys_io ? ? ? ?= 0x40000000,
>>> .io_pg_offst ? ?= (io_p2v(0x40000000) >> 18) & 0xfffc,
>>> .boot_params ? ?= 0x80000100,
>>>
>>
>> Try editing both arch/arm/mach-pxa/Makefile.boot and
>> arch/arm/mach/pxa/include/mach/memory.h
>>
>>> With Thanks
>>> J.Balakrishnan
>>
>> The 0x80000000 should be aliased to 0xa0000000, but looking into the PXA docs,
>> it is only on pxa320. Eric, any ideas on this ?
>>
>
> Should be working on pxa300/310 as well. If it doesn't, check you bootloader
> to make sure the mapping is OK, and memory doesn't exceed
> (0xa000_0000 - 0x8000_0000).
works on CM-X300 with both pxa300 and pxa310
> --
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--
Sincerely Yours,
Mike.
prev parent reply other threads:[~2010-06-06 17:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-01 5:44 pxa300 - DDRAM base value balakrishnan
2010-06-05 17:19 ` Marek Vasut
2010-06-06 8:17 ` Eric Miao
2010-06-06 16:34 ` Marek Vasut
2010-06-07 6:29 ` balakrishnan
2010-06-07 6:58 ` Marek Vasut
2010-06-07 19:37 ` Mike Rapoport
2010-06-07 19:43 ` Marek Vasut
2010-06-08 6:21 ` Mike Rapoport
2010-06-06 17:03 ` Mike Rapoport [this message]
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